import scala.reflect.runtime.currentMirror
    import scala.reflect.runtime.universe._
    import scala.tools.reflect.{FrontEnd, ToolBox}

    val reporter = new FrontEnd {
      override def display(info: Info) {}
      override def interactive() {}
    }

    val toolbox = currentMirror.mkToolBox(reporter)
    val tree = q"object A { def foo[T](t: T) = 1.isInstanceOf[T]; def bar[T](t: T) = 1.isInstanceOf[T] }"
    val typedTree = toolbox.typecheck(tree)
    println(reporter.infos) // Set(Info(NoPosition,abstract type T is unchecked since it is eliminated by erasure,WARNING))